/* ------------- 通用 ------------- */
* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
.container{
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.area {
    padding: 10px;
    border: 1px solid #f08c00;
    background-color: #ffec99;
    border-radius: 5px;
}
.main{
    padding: 10px;
    border: 1px solid #f08c00;
    background-color: #ffec99;
    border-radius: 5px;
    flex: 1;
}
.row {
    display: flex;
    align-items: flex-start;
}
.row .grow-1 {
    flex-grow: 1;
}
/* ------ header ------- */
.nav ul {
    display: flex;
    background: #333;
    list-style: none;
}
.nav ul a {
    color: white;
    text-decoration: none;
    display: block;
    padding: 15px 25px;
}
.nav ul a:hover {
    background-color: #111;
}
.nav .right {
    margin-left: auto;
}

/*-------------- sidebar ------------ */
.sidebar {
    min-width: 200px;
}
.sidebar-group {
    background: #f1f1f1;
}
.sidebar-group > ul {
    list-style: none;
}
.sidebar-group > h2 {
    background: #3185bf;
    color: white;
    padding: 10px 20px;
}
.sidebar-group a{
    display: block;
    color: black;
    text-decoration: none;
    padding: 10px 20px;
    transition: transform 0.5s;
}
.sidebar-group a:hover {
    background: #03a9f4;
    color: white;
    transform: scale(1.1);
}
.footer {
    width: 100%;
    margin: auto;
    text-align: center;
}
/*-------- 12栅格 -----------  */
.col-md-1 {width: 8.33%;}
.col-md-2 {width: 16.67%;}
.col-md-3 {width: 25%;}
.col-md-4 {width: 33.33%;}
.col-md-5 {width: 41.67%;}
.col-md-6 {width: 50%;}
.col-md-7 {width: 58.33%;}
.col-md-8 {width: 66.67%;}
.col-md-9 {width: 75%;}
.col-md-10 {width: 83.33%;}
.col-md-11 {width: 91.67%;}
.col-md-12 {width: 100%;}